PT - JOURNAL ARTICLE ED - , TI - ABSTRACTS AID - 10.1136/bjo.6.7.329 DP - 1922 Jul 01 TA - British Journal of Ophthalmology PG - 329--333 VI - 6 IP - 7 4099 - http://bjo.bmj.com/content/6/7/329.short 4100 - http://bjo.bmj.com/content/6/7/329.full SO - Br J Ophthalmol1922 Jul 01; 6